postmortem

`/em:postmortem <event>` — blameless post-mortem for failed deals, missed quarters, flopped features, and bad hires that avoids both the scapegoat session and the whitewash. Runs seven steps: precisely define expected vs actual impact, do a real 5-Whys chain, separate contributing factors from the root cause, surface warning signs that were ignored, split what was in/out of control, build a specific change register (owner + due date + verification), and set a verification date so the changes actually get checked.

A postmortem skill from claude-config, a comprehensive collection of Claude Code skills for software development workflows and best practices.

A Claude Code incident response plugin from the Grey Haven configuration suite, providing incident management capabilities alongside hooks, skills, and marketplace integration.